scholarly journals Comprehensive studies of different types of river mouths (on the example of the river mouths in the north-western part of the Black Sea)

2021 ◽  
Author(s):  
R.Ya. Minkovskaya ◽  
Keyword(s):  
Black Sea ◽  
Nature Management ◽  
Anthropogenic Factors ◽  
The Black Sea ◽  
Northwestern Part ◽  
Observation Data ◽  
Monitoring And Control ◽  
The North ◽  
Estuarine Processes ◽  
River Mouths

The development of the concept of sea estuaries as separate geographic objects based on a strategy of interdisciplinary research and about 6 million non-equidistant observation data, subject to nonstationarity of estuarine processes and unstable anthropogenic load, made it possible to propose a universal structural and hydrological typification of estuaries; to establish their maritime boundaries in terms of the minimum values of water salinityas Cv, to regionalize water areas from river to maritime boundaries and, on the this basis, to improve scientific terminology. Modern distribution schemes have been obtained and general patterns have been established for the variability of the main characteristics of the state of estuaries, depending on the variability of the river runoff and the water level of estuarine seasides, and new methods for their calculation, invariant for similar estuaries, are proposed. 54 negative phenomena are included in the catalogue; their interrelationships, causes and consequences are established. The analysis of estuarine processes has been carried out, the patterns of variability of their main characteristics from natural and anthropogenic factors have been determined. The ways of solving the problems of nature management in the estuarine regions of the northwestern part of the Black Sea are proposed. The monograph is intended for oceanographers, hydrologists, hydrochemists, ecologists, workers of environmental protection, monitoring and control organizations, as well as teachers, graduate students and students of relevant specialties.

scholarly journals On the impact of local natural and climatic conditions of the North-West Caucasus on the vital activities of the population in the context of the observations of I.N. Klingen

2021 ◽  
pp. 27-35
Author(s):  
Людмила Васильевна Бурыкина ◽  
Лариса Дмитриевна Федосеева
Keyword(s):  
Black Sea ◽  
Climatic Conditions ◽  
Practical Significance ◽  
Nature Management ◽  
Anthropogenic Activity ◽  
The Black Sea ◽  
Black Sea Region ◽  
North West ◽  
The North ◽  
The Impact

В статье предпринят анализ сведений о климате Северо-Западного Кавказа на базе монографии И.Н. Клингена, основанной на материалах комиссии И.С. Хатисова - А.Д. Ротиньянца и других исследователей Причерноморья и содержавшей компетентную и ценную информацию по истории сельского хозяйства шапсугов и убыхов. Несмотря на благоприятные природно-климатические условия, данная территория очень специфична, но это была естественная среда обитания адыгских племен, разработавших самобытные приемы агротехники и особые орудия труда, позволившие им возделывать землю, как на склонах гор, так и в низинах, и собирать значительные урожаи. Адыгскими племенами были выработаны собственные формы адаптации к среде обитания, представлены оригинальные способы жизнедеятельности в сложных климатических условиях, позволившие поддерживать региональную модель стабильного социально-экономического развития со своей этнокультурной спецификой. Проблема воздействия локальных природно-климатических условий на антропогенную деятельность и его отражение на процесс формирования традиции природопользования, земледельческий опыт адыгских племен, изложенный в отчете И.С. Хатисова и монографии И.Н. Клингена, не утратили актуальности и в современных условиях, поскольку сходы селевых потоков, водная эрозия с разрушительными последствиями стали настоящим бичом для хозяйств, курортов и простых граждан. Культура земледелия причерноморских адыгов была и остается самой разумной для этой территории и имеет не только научно-познавательное, но и практическое значение. The paper undertakes an attempt to analyze information about the climate of the North-West Caucasus basing on a monograph by I.N. Klingen. This monograph was based on the materials of the Commission of I.S. Khatisov-A.D. Rotinyants and other researchers of the Black Sea region. It contains competent and valuable information on the history of agriculture of the Shapsugs and Ubykhs. Despite favorable natural and climatic conditions, this territory is very specific. In this natural habitat, the Adyghe tribes developed original techniques of agricultural machinery and special tools that allowed them to cultivate land both on the slopes of the mountains and in the lowlands, and take significant crops. The Adyghe tribes developed their own forms of adaptation to the habitat, presented original ways of living in difficult climatic conditions, which made it possible to maintain a regional model of stable socio-economic development with its ethnocultural specificity. The problem of the impact of local natural and climatic conditions on anthropogenic activity and its reflection on the process of forming the tradition of nature management, the agricultural experience of the Adyghe tribes, set out in the report of I.S. Khatisov and the monograph by I.N. Klingen, have not lost their relevance in modern conditions. Rural mudflows, water erosion with destructive consequences have become a real scourge for farms, resorts and simple citizens. The culture of agriculture of the Adyghes living in the Black Sea region was and remains the most reasonable for this territory and has not only scientific and cognitive, but also practical significance.

scholarly journals Constructive-geographic foundations of nature management on the north-western coast of the Black Sea

2019 ◽  
Keyword(s):  
Natural Resources ◽  
Coastal Zone ◽  
Black Sea ◽  
West Coast ◽  
Nature Management ◽  
The Black Sea ◽  
Western Coast ◽  
North West ◽  
Natural Systems ◽  
The North

The aim of the research is to analyze the problem of anthropogenic influence on the sea coasts, to develop and improve the constructive-geographical foundations of rational nature management for the conservation and possible renewal of natural resources on the north-west coast of the Black Sea. Methods. The main methods used in the preparation process and writing of the article are systematization methods, retrospective, analytical, comparative geographical and historical. Scientific novelty of the article. The fact that the coastal zone of the Black Sea coast is experiencing uncontrolled anthropogenic impacts; this research has improved and developed constructive-geographical foundations for their rational management. Practical value. Developed scientific recommendations are universal. They are very important for the implementation of integrated management of the coastal zone in the country, the optimization of nature management and the preservation of the natural systems on the north-west coast of the Black Sea, in particular, and the entire World Ocean, as a whole. Research results. Intensive development of the coast and consumer economic activity over the past decades has led to the degradation of natural systems. Rational use of natural resources of the coastal zone of the sea assumed the development of foundations that comprehensively take into account the physical-geographical and socio-economic processes, as well as the laws of their development that determine the current state and dynamics of changes in natural systems during their operation. On the basis of a detailed study of domestic and foreign publications related to this topic, the activities of integrated coastal zone management (ICZM) in different countries of the world were analyzed. The foundations and principles for introducing ICZM in Ukraine are highlighted. It has been established that for the development of any projects in the coastal zone of the sea, it is necessary to have a scientific natural rationale from scientists obtained in the process of detailed research. These provisions can be the scientific basis of the relevant legislative framework for the optimization of nature management and spatial planning on the north-west coast of the Black Sea. Well-developed and improved scientific provisions are suitable for correcting the current situation in the direction of higher efficiency on coastаl control. These constructive-geographic foundations can become the basis and the main algorithm for practical implementation of environmental legislation in Ukraine.

scholarly journals Anthropogenic impact on the shores and the bottom of the Jebriyan bay in the Northwestern part of the Black Sea

2021 ◽  
Vol 30 (4) ◽  
pp. 729-740
Author(s):  
Yuriy D. Shuisky ◽  
Galina V. Vykhovanetz ◽  
Ludmila V. Organ ◽  
Mukete Theophilus N. Moto
Keyword(s):  
Black Sea ◽  
Anthropogenic Impact ◽  
Danube River ◽  
Nature Management ◽  
The Black Sea ◽  
Northwestern Part ◽  
Northern Coast ◽  
Danube Delta ◽  
Average Depth ◽  
The Impact

The Jebriyan Bay is located in the northern part of the Kiliya Danube Delta, at a junction of the delta cone and the indigenous coast. This is a zone of very high anthropogenic impact on the Danube Biosphere Reserve. The two opposite shores of this bay are fundamentally different. Along the northern shore, the Northwest coastal sand sediment flows discharge from the Cape of the Great Fontanne to the Jebriyan Bay. That is why the northern coast of the bay is made up of sandy forms of coastal topography (marine accumulative terrace and spit). The southern coast is deltaic; composed of a mixture of muddy, siltstone and sandy sediments. The area of the bay is limited to isobaths –11 m and is about 80 km2. The bottom of the bay has a gentle relief, made up of smooth outlines, with an average depth of 6.2 m. The shape of the transverse profile of the underwater slope is mostly convex. The natural system of the bay was affected by fishing, recreation, shipping and industrial sand production on coastal accumulative landforms. Coastal fishing uses a system of fixed bottom seines and small motorized floating equipment. Recreational facilities are designed to serve about 350 thousand people during the warm period each year. The impact of shipping was expressed in the construction and operation of the seaport of Ust-Dunaysk, together with suitable canal and the technical canal between the sea and the branch of the delta breakthrough the system of the large Ochakov branch. The ladle port had an area of about 1.5 km2, a maximal depth of 16 m, and an average depth of 13.7 m. The trough was connected to the Ochakov branch of the Danube Delta by a technical canal with a depth of 4 m. Vessels could enter the harbor of Ust-Danube through an access navigation channel with a depth of 11–12 m and a bottom width of 125 m. The port was used for the transshipment of large containers, general forest cargo from ocean vessels (displacement of 60–100 thousand tons) on regular sea lines from the countries of Southeast Asia to the Black Sea, to the Danube and further to the countries of Central Europe and to the ports of the North and the Baltic Seas. But it was unfortunate that the port construction site did not last as expected. Between 1980–2010 the harbor and approach canal of Ust-Dunaysk were filled with Danube river sediments. The example of Jebriyan Bay has shown that when executing any type of sustainable nature management project, it is very important to take into account the natural milieu.

Morphostructural organization of the North-Western part of the Black Sea shelf

2018 ◽  
Vol 90 (2) ◽  
pp. 58-61
Author(s):  
E. Mikhaylenko
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Northwestern Part ◽  
Tectonic Plates ◽  
The North ◽  
Tectonic Processes ◽  
The Baltic ◽  
River Valleys ◽  
North Western ◽  
Tectonic Origin

The article is devoted to the investigation of the morphostructure organization of the northwestern part of the Black Sea shelf and the connection of morphostructural elements with underwater canyons. In the presented material is considered the issue of the origin of underwater canyons. The valleys of the Danube, the Dnieper, the Dniester, and the Southern Bug are followed on the north-western shelf at a considerable distance from the shore (approximately 100-120 km). The question of the origin of the underwater canyons remains controversial. Since the underwater canyons in their main part are the continuation of large rivers, the question arises of their paleogeographic origin, but at the same time if the underwater canyons are former river valleys, then how did they find themselves at the bottom of the sea at depths of 2000 m? Consequently, we need incredible tectonic processes to hide the riverbed at such a depth. All this contradicts the formation of the Earth in Tertiary and Quaternary time. Consequently, there are reasons to believe that the underwater canyons are based on tectonic forms of relief. The analysis of the tectonic discontinuity of the Baltic Shield and other areas shows that when the shields are raised, radial split systems are formed and concentrically located to the center of the lift. This hypothesis is consistent with the theory of tectonic plates. It is likely that the same system of splits should also be formed when immersing the edge of the main platform. Thus, the most scientific one can be considered a tectonic hypothesis. The characteristic of morphostructures, analysis of their interconnection, expression in the relief, connection with underwater canyons is carried out. It was investigated that all large underwater canyons of the Black Sea shelf coincide with the isolated linear morphostructures, and, consequently, have tectonic origin.

Modeling of ecological conditions in the Euxine Basin in the Sarmatian and Maeotian by methods of diatom analysis

2019 ◽  
pp. 257-261
Author(s):  
Eleonora P. Radionova
Keyword(s):  
Black Sea ◽  
Late Miocene ◽  
The Black Sea ◽  
Subtidal Zone ◽  
Diatom Analysis ◽  
Diatom Flora ◽  
North West ◽  
Ecological Conditions ◽  
The North

The associations and ecological conditions of the existence of modern diatoms of the North-West (Pridneprovsky), Prikerchensky and Eastern regions of the subtidal zone of the Black Sea are considered. Based on the unity of the composition of the Present and Sarmatian-Meotian diatom flora, an attempt has been made to model some of the ecological c situation of the Late Miocene Euxinian basin.

SHORT-TERM DYNAMICS OF THE ANAPA BAY-BAR SHORELINE

2017 ◽  
Author(s):  
Marina Krylenko ◽  
Marina Krylenko ◽  
Alexandr Aleynikov ◽  
Alexandr Aleynikov ◽  
Viacheslav Krylenko ◽  
...  
Keyword(s):  
Black Sea ◽  
Satellite Images ◽  
The Black Sea ◽  
Northwestern Part ◽  
Short Term ◽  
Shoreline Position ◽  
Local Dynamics ◽  
Average Displacement ◽  
Local Erosion

The Anapa bay-bar is located in the northwestern part of the Black Sea. With the goal in mind to determine the short-term dynamics of the Anapa bay-bar we analyzed satellite images from 2003 to the present. Depending on the hydro-lithodynamical situation the shoreline configuration during storm can vary from a rectilinear to sinusoidal forms. There are regions of local erosion or accumulation whose formation is related to the alongshore motion of sediments and dynamics of underwater bars. Comparison of the data on 1965 and 1966 showed that in this period the amplitude of the shoreline position was more than 20 m but average displacement of the shoreline for 13 months was only 0.8 m. This study showed that for the analysis of changes in the shoreline position is necessary to consider the configuration of the coastline at the time of each observation and the local dynamics.

Oscillations of the Black Sea sea level in the north part of the coast

1999 ◽  
Vol 10 (2) ◽  
pp. 123-130
Author(s):  
Yu. I. Goryachkin ◽  
V. A. Ivanov ◽  
Yu. A. Stepanyants
Keyword(s):  
Sea Level ◽  
Black Sea ◽  
The Black Sea ◽  
The North ◽  
North Part
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